User:Michael S. Bible/Notebook/571/2014/10/14: Difference between revisions

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*#Titrate with your NH<sub>4</sub>SCN solution
*#Titrate with your NH<sub>4</sub>SCN solution
*#Your solution should turn red around 10 mL
*#Your solution should turn red around 10 mL
Procedure taken from [[User:Douglas_M._Fox/Notebook/AU_CHEM-571_F2011_Lab_Support/2014/10/08|Dr. Fox's Notebook]]


==Description==
==Description==

Revision as of 11:07, 14 October 2014

Biomaterials Design Lab <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
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[I-] by Precipitation Titration

  • Prepare 25 - 30 mL 50 mM KI Stock Solution (store in 50 mL Falcon tube)
  • Prepare 50 mL 75 mM AgNO3 Solution
    • Be very precise with your measurements (use Rm 205 balance)
    • Use volumetric flask
    • Store in Black 50 mL Falcon tube
  • Prepare 100 mL 10 mM NH4SCN Stock Solution (store in Falcon tubes)
  • NH4SCN Standardization
    1. Add 3 mL 1 M HNO3 and 2 mL AgNO3 to 10 mL DI H2O
    2. Add 200 μL Ferric alum indicator
    3. Titrate with your NH4SCN solution
    4. Your solution should turn red around 15 mL
  • KI Standardization
    1. Add 3 mL 1 M HNO3 and 1 mL KI to 10 mL DI H2O
    2. Add 2 mL AgNO3 and swirl to complete precipitation
    3. Add 200 μL Ferric alum indicator
    4. Titrate with your NH4SCN solution
    5. Your solution should turn red around 10 mL

Procedure taken from Dr. Fox's Notebook

Description

  1. Add experimental record here. Include what, how, and why...

Data

  • Add data and results here...

Notes

This area is for any observations or conclusions that you would like to note.


Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.




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